CHAIR FOR A CONCRETE LIFTING ANCHOR
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Abstract
A chair for supporting an edgelift anchor for use in lifting a concrete component, said anchor comprising a head portion engagable with a clutch of a lifting system, and a body portion for embedment with the concrete component, wherein the chair has surfaces configured for supporting the edgelift anchor relative to a casting surface during casting of the concrete component.
37 Citations
30 Claims
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1-15. -15. (canceled)
- 16. A collar for an anchor for use in lifting a concrete component, said anchor comprising a head portion engageable with a clutch of a lifting system, and a body portion for embedment within the concrete component, the collar including an attachment portion for attaching the collar to the head portion of the anchor, and an abutment portion adapted to provide a clutch abutment surface for limiting rotation of the clutch relative to the anchor.
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30. An anchor system for use in lifting a concrete component, the assembly comprising an anchor formed from a one-piece elongate element shaped to form a head portion engageable by a clutch of a lifting system and a body portion for embedment within the concrete component;
- and a collar carried by the head portion of the anchor to define at least one clutch abutment surface for limiting rotation of the clutch relative to the anchor.
Specification